On pricing: "There are two kinds of companies， those that work to try to charge more and those that work to charge less. We will be the second."

I think the most important thing is to be true to yourself and to be honest with yourself.

企业家的社会责任比赚钱更重要。

Mathematics is the most beautiful and most powerful creation of the human spirit.

I came up from the bottom, I ain't forget where I started.

关于教育的斗争不仅仅是关于知识、权力和身份的斗争，也是关于希望和未来意义的斗争。